Virtual reality with three-dimensional image guidance of individual patients’ vessel anatomy in laparoscopic distal pancreatectomy

2020 ◽  
Vol 405 (3) ◽  
pp. 381-389 ◽  
Author(s):  
Takeshi Aoki ◽  
Tomotake Koizumi ◽  
Doaa A. Mansour ◽  
Akira Fujimori ◽  
Tomokazu Kusano ◽  
...  
2009 ◽  
Vol 9 (10) ◽  
pp. 817-821 ◽  
Author(s):  
Jonathan M. Bledsoe ◽  
Doug Fenton ◽  
Jeremy L. Fogelson ◽  
Eric W. Nottmeier

2019 ◽  
Author(s):  
Yusuke Wada ◽  
Takeshi Aoki ◽  
Masahiko Murakami ◽  
Akira Fujimori ◽  
Tomotake Koizumi ◽  
...  

Abstract [Background] There are no established standard criteria for choosing the most appropriate procedure of splenic artery dissection during laparoscopic distal pancreatectomy (LDP); thus, the choice of procedure varies across surgeons. The aim of this study was to evaluate the clinical benefits of individualized procedures for splenic artery dissection during LDP based on the variations in arterial structure visualized on preoperative three-dimensional computed tomography (3D-CT). [Methods] Patients who underwent LDP following 3D-CT at a single center were retrospectively evaluated. 3D-CT images were used to construct virtual 3D laparoscopic images for surgical planning. The splenic artery was classified into two major anatomic types: type V that curves and runs ventral to the pancreas and type D that runs straight and dorsal to the pancreas. Splenic artery dissection was planned according to these two variations, with type V dissected using an approach ventral to the pancreas and type D using a dorsal approach. [Results] Type-specific dissection was applied for 30 patients: 25 (83%) with type V and 5 (17%) with type D splenic artery anatomies. The splenic artery was successfully dissected using the planned surgical procedure that was simulated preoperatively. [Conclusion] The individualized procedures for splenic artery dissection according to anatomic variations visualized on 3D-CT images can help improve the success and safety of LDP.


Author(s):  
Angela Adrian

Virtual worlds may be the future of e-commerce. The game designers who fashioned these flourishing virtual worlds have invented a much more appealing way to use the internet: through an avatar. This usage of the term was coined in 1985 by Chip Morningstar, a user of the first avatar environment created by LucasFilm called Habitat. Habitat lacked many of the features we have in today’s games such as quests and puzzles. It was more similar to a social MUD in which the interactivity between avatars was the ultimate goal. According to Encarta: “Avatar [Sanskrit]: 1. incarnation of Hindu deity: an incarnation of a Hindu deity in human or animal form, especially one of the incarnations of Vishnu such as Rama and Krishna. 2. embodiment of something: somebody who embodies, personifies, or is the manifestation of an idea or concept. 3. image of person in virtual reality: a movable three-dimensional image that can be used to represent somebody in cyberspace, for example, an Internet user.” Unlike previous video game alter-egos, these avatars can be completely customized and are designed mainly for social interaction (Lastowka and Hunter, 2004). The average player dedicates hundreds of hours (and hundreds of dollars, in some cases). To cultivate his avatar. A survey suggested that approximately 20 percent of Norrath’s citizens deem it their place of residence; they just commute to Earth and back. To a large and growing number of people, virtual worlds are an important source of material and emotional well-being. (Yee). Ordinary people, who are bored and frustrated by regular web commerce, participate vigorously and passionately in avatar-based on-line markets.


2019 ◽  
Vol 39 (2) ◽  
pp. 867-874
Author(s):  
EUNSUNG JUN ◽  
ABDULWAHAB A. ALSHAHRANI ◽  
KI BYUNG SONG ◽  
DAE WOOK HWANG ◽  
JAE HOON LEE ◽  
...  

2016 ◽  
Vol 12 (4) ◽  
pp. 758-764 ◽  
Author(s):  
Jang W. Yoon ◽  
Eric W. Nottmeier ◽  
Gazanfar Rahmathulla ◽  
Douglas S. Fenton ◽  
Stephen M. Pirris

1996 ◽  
Vol 15 (3) ◽  
pp. 227-235 ◽  
Author(s):  
Gernot Schaufler ◽  
Wolfgang Sturzlinger

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